Sudoku Made and maintained by Brian Hamilton and Karan Hamilton.
Brian builds the playable puzzle tools, while Karan helps test clarity, difficulty feel, and the player experience.
Playable puzzles and controls are tested in the browser for rule accuracy, usability, and a clear solving experience. See how we make and test puzzles, our editorial standards, or report a problem.
Cinco de Mayo Sudoku: A Fiesta with One Firm Rule
Cinco de Mayo Sudoku brings nine festive tiles to the classic grid — Mexican flag, taco, chili pepper, guitar, cactus, avocado, corn, star, and party popper. Shown as pictures or as plain digits, each tile lands exactly once in every row, column, and box.
What the day actually is
Worth settling before the first tile goes down: Cinco de Mayo commemorates the Battle of Puebla in 1862, when Mexican forces defeated a much larger French army — it is not Mexico's Independence Day, which falls on September 16th. In Mexico the anniversary is marked mainly in Puebla itself; the big street-party version of May 5th is largely a celebration of Mexican culture in the United States. Now you can win the argument at the table and the puzzle afterwards.
The green arrivals
The beginner 4x4 board reads instantly — flag, taco, chili pepper, guitar, no two remotely alike. The test comes at 6x6, when the cactus and the avocado arrive together: two green tiles joining at the same moment, and reliably the pair that swap in a solver's peripheral vision. Digit labels are one setting away in the display options if the greens will not behave. The corn, star, and party popper complete the full 9x9.
Tiles with day jobs
Several of these tiles work elsewhere on the site: the guitar headlines our Music board, the corn does harvest duty on the Fall board, and the party popper rings in the New Year. On May 5th they all show up to the same party — which is, we suppose, what a good party looks like.
First player to finish a 4x4 assembles their taco first. The taco tile may cause hunger; plan the evening accordingly.
One of each, everywhere
Every puzzle has a single solution, and no tile repeats in any row, column, or box — the rule holds in any language. Grading, hints, and notes are all covered on the Themed Sudoku page, where the rest of the collection keeps the celebration going.
Cinco de Mayo Sudoku FAQ
No — that is the most common mix-up about the date. Cinco de Mayo commemorates the Battle of Puebla in 1862; Mexican Independence Day is September 16th. The festive May 5th most people picture is celebrated most widely in the United States.
The 4x4 board uses the Mexican flag, taco, chili pepper, and guitar; the cactus and avocado arrive together at 6x6; and the corn, star, and party popper complete the full 9x9.
They are the set's two green tiles and they join the board at the same size, 6x6. If they blur at phone size, the display options can print a digit on every tile — same puzzle, no ambiguity.